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Find second largest number in an array

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Golu Rawat answered on September 24, 2020 Popularity 9/10 Helpfulness 1/10

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Find second largest number in an array

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// Java program to find second largest
// element in an array
import java.util.*;
class GFG{
 
// Function to print the
// second largest elements
static void print2largest(int arr[],
                          int arr_size)
{
  int i, first, second;
 
  // There should be
  // atleast two elements
  if (arr_size < 2)
  {
    System.out.printf(" Invalid Input ");
    return;
  }
 
  // Sort the array
  Arrays.sort(arr);
 
  // Start from second last element
  // as the largest element is at last
  for (i = arr_size - 2; i >= 0; i--)
  {
    // If the element is not
    // equal to largest element
    if (arr[i] != arr[arr_size - 1])
    {
      System.out.printf("The second largest " +
                        "element is %d\n", arr[i]);
      return;
    }
  }
 
  System.out.printf("There is no second " +
                    "largest element\n");
}
 
// Driver code
public static void main(String[] args)
{
  int arr[] = {12, 35, 1, 10, 34, 1};
  int n = arr.length;
  print2largest(arr, n);
}
}
 
// This code is contributed by gauravrajput1

Popularity 9/10 Helpfulness 1/10 Language whatever

Source: www.geeksforgeeks.org

Tags: find whatever

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Contributed on Aug 24 2022

Golu Rawat

0 Answers Avg Quality 2/10

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find second largest number in array javascript

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var secondMax = function (){ 
    var arr = [20, 120, 111, 215, 54, 78]; // use int arrays
    var max = Math.max.apply(null, arr); // get the max of the array
    arr.splice(arr.indexOf(max), 1); // remove max from the array
    return Math.max.apply(null, arr); // get the 2nd max
};

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: stackoverflow.com

Tags: find

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Contributed on Oct 14 2020

Jumping Boy

0 Answers Avg Quality 2/10

second biggest number in array

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import java.util.Random;

public class secondBiggestNumber {

    public static void main (String[] args){

        // creating array
        int[] array1 = new int[8];

        // randomly filling with 8 elements
        fill(array1, -100, 100);

        // printing them out
        for (int i = 0; i < array1.length ; i++) {
            System.out.println(array1[i] + " ");
        }

        //sorting them by ascending order
        int current = 0;
        for (int i = 0; i < array1.length ; i++) {
            for (int j = i+1; j < array1.length ; j++) {
                if (array1[i]>array1[j]) {
                    current = array1[i];
                    array1[i] = array1[j];
                    array1[j] = current;
                }
            }
        }

        //printing out the second biggest number
        System.out.println("The second biggest number: " + array1[6] );
    }

    private static void fill(int[] array, int lowerBound, int highBound) {
        Random random = new Random();
        int bound = highBound - lowerBound;
        for (int i = 0; i < array.length; i++) {
            array[i] = random.nextInt(bound) + lowerBound;
        }
    }
}

Popularity 9/10 Helpfulness 3/10 Language java

Source: Grepper

Tags: java

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Contributed on Oct 21 2022

Breakable Boar

0 Answers Avg Quality 2/10

second largest number in array

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public static void SecondndLargestfromarray()
{
    var scan = new Scanner(System.in);
    var n = scan.nextInt();
    long l=Long.MIN_VALUE;
    long p=Long.MIN_VALUE;

    for (int i = 0; i < n; i++) {
        var sc = scan.nextLong();
        if(sc>l)
        {
            p=l;
            l=sc;
        }
        else if(sc>p ) p = sc;
    }
    System.out.println(p);
}

Popularity 9/10 Helpfulness 3/10 Language java

Source: Grepper

Tags: java

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Contributed on Nov 12 2022

PrashantUnity

0 Answers Avg Quality 2/10

second largest element in an array

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/* C program to print second largest element of the array*/
//Save it as SecondLargestElementArray.c

#include<stdio.h>
#include<limits.h>
int main(){

    int i,n;

    printf("Enter the size of array : ");
    scanf("%d",&n);
    //Declaring array
    int arr[n];

    printf("Enter the elements of the array : ");
    for(i=0;i<n;i++) {
        scanf("%d",&arr[i]);
    }
	
    //Declaring maximum element
    int maximum = INT_MIN;

    //Comparing with each element and find maximum element
    for(i=0;i<n;i++) {
        if(arr[i] > maximum) {
            maximum = arr[i];
        }
    }
    printf("The maximum value is : %d", maximum);

    int second_max = INT_MIN;

    //Finding Second largest element.
    //Comparing with each element and also checking it is not equal to max
	
    for(i=0;i<n;i++) {
        if(arr[i] > second_max && arr[i]!=maximum) {
            second_max = arr[i];
        }
    }
    printf("\nThe second maximum value is : %d", second_max);
}

Input: 
Enter the size of array : 
6
Enter the elements of the array : 
4 3 8 0 8 7

Output:
The maximum value is : 8
The second maximum value is : 7

Popularity 9/10 Helpfulness 3/10 Language c

Source: codebaji.com

Tags: c element el

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Contributed on Apr 03 2022

Honey Shah

0 Answers Avg Quality 2/10

second largest element in array

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      // [10,30,15,4,2,5]
      // when you get element< smallest
             //interchange second_smallest <-> smallest
             //smallest= element
      //else if u get element< second_smallest
          //if element != smallest then
            //second_smallest= element
            
            
      //find neat code below
      
      long min=Integer.MAX_VALUE;
        long sMin= Integer.MAX_VALUE;
        
        for(int i=0; i<n; i++){
            if(a[i]< min){
                sMin=min;
                min= a[i];
            }
            else if(a[i]<sMin && a[i]!= min){
                sMin= a[i];
            }
        }

Popularity 9/10 Helpfulness 2/10 Language whatever

Source: Grepper

Tags: element

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Contributed on Jul 25 2022

Bhagi Makwana

0 Answers Avg Quality 2/10

Program to find second largest number in an array

Comment

public static void main()
  {
    a1(new int[]{1, 2, 3, 4});
    a1(new int[]{4, 1, 2, 3});
    a1(new int[]{1, 1, 2, 2});
    a1(new int[]{1, 1});
    a1(new int[]{1});
    a1(new int[]{});
  }
	
  static int a1(int[] a)
  {
    int max1 = -1;
    int max2 = -1;
		
    for (int i=0; i<a.length; i++)
    {
      if (a[i] > max1)
      {
        max2 = max1;
        max1 = a[i];
      }
      else if (a[i] != max1 && a[i] > max2)
        max2 = a[i];
    }
		
    return max2;
  }

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Source: admin.cs.miu.edu

Tags: find

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Contributed on Jul 16 2022

Proud Pig

0 Answers Avg Quality 2/10

finding second highest number in array

Comment

public static int secHigh(int arr[]){
  int firstHigh = 0,secHigh = 0;
  for(int x: arr){
    if(x > firstHigh){
      secHigh = firstHigh;
      firstHigh = x;
    }else if(x > secHigh){
      secHigh = x;
    }
  }
  return secHigh;
}

Popularity 10/10 Helpfulness 2/10 Language php

Source: stackoverflow.com

Tags: highest

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Contributed on Feb 07 2022

devasghar

0 Answers Avg Quality 2/10

find second largest number in array javascript

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var secondMax = function (arr){ 
    var max = Math.max.apply(null, arr), // get the max of the array
        maxi = arr.indexOf(max);
    arr[maxi] = -Infinity; // replace max in the array with -infinity
    var secondMax = Math.max.apply(null, arr); // get the new max 
    arr[maxi] = max;
    return secondMax;
};

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: stackoverflow.com

Tags: find

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Contributed on Sep 24 2020

Courageous Chamois

0 Answers Avg Quality 2/10

find second largest number in array c++

Comment

/*
quick explaination
basicly its searching for the largest UNSIGNED INT in an array of UNSIGNED INT where all the elements are the same size in bytes but the size in all the elements is a variable and can be changed

this method is finding the largest number but to find the second or third or even sort the array
i will create some sort of stack where each element is pushed but sense this is to find the 2nd largest number
it will just do that but you get the idea if you want to change the code to be something that fits you

suggestion : if you already know what size of numbers your array will be then its better to create
an easier and much effecient method in your case but this is a general one where the size isn't really knowen
*/

int GetLargestUnsignedIntElement(void* array_ptr, int array_length, int var_size)
{
	void* var = malloc(var_size); 
	int second_largest = 0; //to be returned
	int largest_index = 0;
    //both the integers above are more like a "stack" but much more effecient
    //than using a real stack class
	bool Larger = false;
	for (int x = 0; x < var_size; x++) 
	{
		*(unsigned char*)((int)var + x) = 0;
	}
	for (int index = 0, ptr = (int)array_ptr; index < array_length; index++, ptr = ((int)array_ptr) + (index * var_size))
	{
		for (int i = 0, iptr = ptr; i < var_size; i++, iptr++)
		{
			if (*(unsigned char*)iptr > *(unsigned char*)((int)var + i))
			{
				Larger = true;
				continue; 
			}
			else if (*(unsigned char*)iptr == *(unsigned char*)((int)var + i))
			{
				continue; 
			}
			else
			{
				Larger = false; 
				continue;
			}
		}
		if (Larger)
		{
			for (int x = ptr, y = (int)var; x < (ptr + var_size); x++, y++)
			{
				*(unsigned char*)y = *(unsigned char*)x;
			}
          	//push the result
			second_largest = largest_index;
			largest_index = index;
          
		}
		else
		{
			continue;
		}
	}

	free(var);
	return second_largest;
}

Popularity 9/10 Helpfulness 1/10 Language cpp

Source: Grepper

Tags: c++ find fin

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Contributed on May 04 2022

Light Dragon

0 Answers Avg Quality 2/10

find second largest number in array javascript

Comment

const arr = ['20','120','111','215','54','78', '120'];   
let intArray = arr.map(Number); // convert into number
intArray = [...new Set(intArray)]; // Remove duplicate numbers
const secondLargestNumber = intArray.sort((a,b) => {
   return b - a;
})[1];
console.log(secondLargestNumber) // 120

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: find javascript

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Contributed on Jun 22 2021

Blushing Bird

0 Answers Avg Quality 2/10

Find second largest number in an array

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find second largest number in array javascript

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